Two-terminal DSSC/silicon tandem solar cells exceeding 18% efficiency

Kwon, Jeong-Yi; Im, Min Ji; Kim, Chan Ul; Won, Sang Hyuk; Kang, Sung Bum; Kang, Sung Ho; Choi, In Taek; Kim, Hwan Kyu; Kim, In Ho; Park, Jae Hyung; Choi, Kyoung Jin

doi:10.1039/c6ee02296k

Cited by 44 publications

(17 citation statements)

References 38 publications

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“…Thin film tandem cells thus provide a promising approach to obtain high efficiencies at low costs. For thin film tandem cells, different technologies were used focusing on integrating high bandgap solar cells on standard thin film technologies through 2‐terminal, 3‐terminal, or 4‐terminal junctions . Recently, an increasing number of absorber materials with the potential to act as a top higher bandgap cell have been investigated .…”

Section: Introductionmentioning

confidence: 99%

High‐performance low bandgap thin film solar cells for tandem applications

Elanzeery

Babbe

Melchiorre

et al. 2018

Progress in Photovoltaics

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Thin film tandem solar cells provide a promising approach to achieve high efficiencies. | INTRODUCTIONCurrently, there is an increasing demand to provide cheap high-efficiency solar cells that can exceed state-of-the-art single-junction solar cell technologies. One approach to achieve this is through using tandem solar cells. Tandem or multijunction solar cells have the potential to achieve efficiencies of more than 30%. set the full illumination intensity for the IVT measurements. A mechanical shutter was used to allow dark and illuminated measurements within the same experiment. Admittance measurements were performed in the dark, after keeping the sample mounted in the dark at room temperature for 1 night, with an LCR meter using the same cryostat setup. All characterizations were performed after adding the ARC layer. For the extraction of the quasi-Fermi-level splitting (qFLS), photoluminescence (PL) spectra were recorded on CdS-covered absorbers in a home-built calibrated setup at room temperature under continuous monochromatic illumination with 660-nm wavelength. 27,28The spectral and absolute corrected PL spectra are converted into energy space. In a semilogarithmic plot, the high-energy wing of the PL peak is fitted linearly and is evaluated by means of the simplified Planck's generalized law, 29 providing the qFLS as well as the temperature. Figure 1A. Figure 1 A also presents the electrical behavior under light for CIS_0.95 measured in-house. Table 1 as a function of absorber bandgap are shown in Figure 2. All IV measurements were performed after adding an ARC layer.In Figure 1A, it is observed that V OC increases and J summarized in Table 1, it can be concluded that the cells lose more in recombination than in incomplete absorption (η el < η op ). Moreover, the

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Section: Introductionmentioning

confidence: 99%

High‐performance low bandgap thin film solar cells for tandem applications

Elanzeery

Babbe

Melchiorre

et al. 2018

Progress in Photovoltaics

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“…Usually, the conversion and storage of energy are two different processes. For example, piezoelectric nanogenerators and photovoltaic cells convert mechanical and solar energy, respectively, into electrical energy that is stored in a different physical storage unit such as a capacitor or lithium ion battery for future use. However, recently researchers were interested in the fabrication of a hybrid system that is a self‐charging power cell able to harvest electrical energy from renewable energy resources and store it …”

Section: Introductionmentioning

confidence: 99%

4′‐Chlorochalcone‐Assisted Electroactive Polyvinylidene Fluoride Film‐Based Energy‐Storage System Capable of Self‐Charging Under Light

Khatun

Hoque

Thakur³

et al. 2017

Energy Tech

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A simple photovoltaically self‐charging energy‐storage system (PSESS) has been fabricated as an effective solar energy‐storage power cell. The PSESS is capable of the in situ storage of visible light energy in the form of electrical energy. The PSESS is assembled on a photoelectrode (fluorine‐doped tin oxide) that contained a dye‐sensitized and hole‐trapping phenosafranine–polyvinylpyrrolidone film in association with an electroactive and highly dielectric chlorochalcone–polyvinylidene fluoride (PVDF) film, in which photogenerated electrons are stored. Here, chlorochalcone particles act as a catalytic agent for electroactive β crystal nucleation, visible‐light emission, and the improved dielectric value of the composite thin films. A proportion of 85 % electroactive β phase nucleation and a high dielectric constant (≈60) are achieved by incorporating 20 mass % chlorochalcone in PVDF. The self‐charging capability of the PSESS was verified under a light illumination intensity of 110 mW cm−2. The PSESS was charged up to 0.95 V under light illumination. Moreover, the device wass discharged with a constant current density 1.25 mA g−1 for a long time (≈560 min) after the light was switched off. The photogenerated energy and charge density of the PSESS are approximately 5.25 mWh g−1 and 42 C g−1, respectively. The maximum capacitance attained under the light illumination is approximately 44 F g−1, which is many times greater than two‐electrode self‐charged photovoltaic cells reported previously. A blue light‐emitting diode can be driven by using the PSESSs as a power bank.

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“…e) Efficiency evolution of a single‐junction Si solar cell, single‐junction PSC, 2‐T perovskite/Si tandem, 4‐T perovskite/Si tandem, GaAs/Si tandem, perovskite/perovskite tandem, DSSC/Si tandem, and an OPV/Si tandem. [ 7,15–17,137,140,203–214 ]…”

Section: Emerging Hybrid Tandem Solar Cellsmentioning

confidence: 99%

“…[ 13,14 ] However, Si‐based hybrid tandem solar cells configured with cost‐effective solar cell technologies, including dye‐sensitized solar cell (DSSC) and organic photovoltaics (OPV), have far lower efficiencies than single‐junction Si solar cells, predominantly because of the insufficient compatibility of the employed materials with Si solar cells. [ 15–19 ]…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Interconnection Layer for Hybrid Photovoltaic Tandems

Park

Lee

et al. 2020

Advanced Materials

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larger acceptance owing to their decreasing cost. However, Si cells feature power conversion efficiencies (PCEs) close to the maximum practically achievable value (29.4% for crystalline Si solar cells), which makes it difficult to further reduce the levelized cost of electricity by decreasing the power output-to-cost ratio. [7,8] The most straightforward solution to this problem is to hybridize multiple semiconductor layers in a tandem architecture for absorbing the different wavelengths of the solar spectrum using different solar cell technologies. [9-12] As proven by a theoretical tandem cell efficiency of ≈46%, [13] Si solar cells with a bandgap of 1.1 eV have been regarded as potential bottom subcells of hybrid tandems, additionally offering the benefits of mass production suitability owing to well-organized production lines and global supply chains. [13,14] However, Sibased hybrid tandem solar cells configured with cost-effective solar cell technologies, including dye-sensitized solar cell (DSSC) and organic photovoltaics (OPV), have far lower efficiencies than single-junction Si solar cells, predominantly because of the insufficient compatibility of the employed materials with Si solar cells. [15-19] Metal halide perovskite-based solar cells have attracted significant attention in recent years because of their potential to be processed at low cost, high efficiencies, excellent optoelectronic properties, and tunable bandgap. They have therefore considered as prospective components of hybrid tandems. [20] Previous studies on the fundamental working principle of the hydrogenated amorphous Si (a-Si:H)/a-Si:H tandem and related validation by empirical investigations show the feasibility of combining different solar cell technologies, [6,21-23] as exemplified by the pairing of high-bandgap perovskite subcells with low-bandgap Si subcells or the assembly of dual perovskitebased tandem solar cells exploiting perovskite bandgap tunability. [14,24-26] To date, considerable effort has been directed at the development of wide-bandgap perovskite solar cells (PSCs) (1.65-1.8 eV) for hybrid tandem applications, [27,28] and remarkable progress (i.e., a high open-circuit voltage (V oc) of 1.31 V with a wide bandgap of 1.72 eV (>90% of the Shockley-Queisser limit)) has been achieved. [29] Currently, researchers aim to realize perovskite-based hybrid tandem solar cells with PCEs of 30%. Nonetheless, considerable electrical property and fabrication process adjustments are required to integrate singlejunction perovskites into the hybrid tandem architecture. The introduction of an intermediate layer to bridge different solar Hybrid tandem solar cells offer the benefits of low cost and full solar spectrum utilization. Among the hybrid tandem structures explored to date, the most popular ones have four (simple stacking design) or two (terminal/tunneling layer addition design) terminal electrodes. Although the latter design is more cost-effective than the former, its widespread application is hindered by the difficulty of preparing...

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Two-terminal DSSC/silicon tandem solar cells exceeding 18% efficiency

Abstract: A highly-efficient DSSC/Si monolithic tandem cell utilizing PEDOT:FTS as an interfacial catalytic layer.

Cited by 44 publications

References 38 publications

High‐performance low bandgap thin film solar cells for tandem applications

High‐performance low bandgap thin film solar cells for tandem applications

4′‐Chlorochalcone‐Assisted Electroactive Polyvinylidene Fluoride Film‐Based Energy‐Storage System Capable of Self‐Charging Under Light

Recent Progress in Interconnection Layer for Hybrid Photovoltaic Tandems

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